Printing machine with changeable form



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L. H. MORSE PRINTING MACHINE WITH CHANGEABLE FORM Filed Jan. '7, 1923 8Sheets-Sheet 8 V Y 21 3x66 vi qRqa /nqv Patented May 10, 1927.

UNITED STATES PATENT OFFICE.

LAWRENCE H. HORSE, OF CLEVELAND, OHIO, ASSIGNOR TO THE AMERICAN MULTI-GRAPH COMPANY, A CORPORATION OF OHIO.

PRINTING MACHINE WITH CHANGEABLE FORM.

Application filed January One of the objects of this invention is toprovide a simple and eflicient printing mechanism wherein the printingform or a portion thereof may be readily changed between successiveprinting strokes.

The machine is welladapted for embodiment in a small hand-operatedofiice print ing press adapted for printing circular letters withchangeable addresses through an inked ribbon. In this case, one or bothof the ribbon spools is carried by means allowing it to be readilylifted to uncover 'the adjacent portion of the form, so that thechangeable portion of the form may 7,

platen and its operating mechanism showbe accessible. To this end, Iprefer to mount each ribbon spool between the distant ends of a pair ofbars, the other ends of which are pivoted to the frame in an intermediate region of the machine,'thus enabling substantially eitherhalf of'the form to be uncovered .whenever desired.

The invention is preferably embodied in a fiat bed machine havingaatraveling platen carriage, the platen being a roller which iseccentrically journalled on the carriage so that it may be raised andlowered with reference to the bed. I provide automatically operatedmechanism consequent upon the movement of the platen frame to grip thepaper and turn down the platen so that the continued stroke of theplaten will effeet the printing and thereafter release the printedsheet.

My invention also contemplates an adplstable stop mechanism assistingininsuring short, strokes for the platen carriage such.

as would be suitable for printing envelopes for instance. Automaticmeans is provided for releasing the stopping mechanism after everyimpression so that the next stroke of the platen may be over both portins of the form.

The above and other features of the invention will be hereinafter morefully described, and the essential novel characteristics set out in theclaims.

In the drawings, Fig. 1 is a plan, partly broken away, of one embodimentof my printing machine; Fig. 2 is a side elevation of the machinelooking from the right hand side of Fig. 1 and showing the platencarriage at the forward end of its stroke; Fig. 3 is a similar elevationshowing the platen carriage at the rear end of the stroke;

' 'Fig. sis an end elevation of the machine,

7, 1926. Serial No. 79,731.

partly broken away; Fig. 5 is a detail of the mechanism forautomatically disengaging the limit stop and being aside elevationlooking from the left hand of Fig. 1. 1g. 6 is-a vertical centrallongitudinal section of the machine as indicated by the line 66 of Fig.1; Fig. 7 is a vertical transverse section through the platen shaft asindicated by the line 7--7 of Fig. 1; Fig. 8 is a transverse verticalsection on a plan indicated by the lines 8-8 on Fig. 1, illustratingthe-adjustable stop for limiting the stroke; Figs. 9, 10 and 11 are sideelevations, somewhat diagrammatic, of the release the paper; Fig. 12 isa detail of the ribbon feeding mechanism being a vertical section on theline 11-11 of Fig. 1.

As shown in many of the views, 10 indicates the frame of the machine,whichmay be a suitable rectangular casting with short corner legs and ahorizontal web 11, which may carry a separable raised bed 12, shown assecured to the web by screws 13. Different parts ofthe form may rest onthis bed. As shown, a flexible blanket 20-hooked at 21 over a transverserib 14 of the bed and at its other end hooked onto a bar 23 in which arethreaded screws 24 freely rotatable in the end portion of the bed. Thesescrews accordingly operate to draw the bar 23 away from the bed and pullthe blanket taut.

The blanket 20 referred to may itself be a printing plate or maysuitably carry printing members- As shown, the blanket is provided withrowsof upstanding overhanging projections 25 on which are mountedembossed printing strips 26 after the manner of Patent No. 1,438,580granted December 12, 1922 to my assignee, The American MultigraphCompany, as assignee of Clifton Chisholm. Such blanket, or a formsubstituted therefor, constitutes the portion of the forinwhich isrepeated for successive impressions. e

The changeable portion of the form is shown at 30 in Figs. 1 and 6. Asshown, it comprises a sheet metal plate having rows of upstandingoverhanging projections 31 surmounted by embossed flanged printingstrips 32 after the manner of the patent referred to and of applicationNo. 76,298,

filed December 18, 1925, by Justin W. Macklin and assigned to TheAmerican Multifurniture is supplied beneath the address plate to hold itat the standard height-topaper.

Both portions of the form are covered by a continuous inked ribbon 40.This ribbon is mounted at its ends on a spool 41 and 42. The spool 41 isjournaled in a pair of bars 43 pivoted to the sides of the bed at 44 andconnected at. their free ends by a cross bar 45. Similarly the spool 42is mounted in bars 46 pivoted at the sides of the bed at 47 near thepivots 44 and braced at their free ends by the cross bar 48.

The normal position of the ribbon holding mechanism is with the bars 43and 46 horizontal, as shown in Fig. 6. However, to uncover either halfof the form it is only necessary to grasp the corresponding rod 45 or 48and raise it, thus raising the corresponding ribbon spool and with itthe adjacent portion of the ribbon. This is specially useful to enableuncovering the forward portion of the form, which in this caseconstitutes the changeable address. When the platen carriage is in itsrearmost position, as illustrated in Fig. 3, it stands beyond the pivots44, and then the swinging members carrying the spools 40 may-readily beturned up into the position behind the line of the pivots as shown inFig. 3. The parts may then be left standing if desired during thechanging of the form normally beneath the forward portion of the ribbon.

It is to be understood, as hereinafter more fully explained, that thepaper is placed onto the ribbon overlying the form by the stroke of theplaten from the forward position shown in Figs. 2 and 6 into therearward position shown in Fig. 3, then at-the completion of suchstroke, the hinged frame for the forward spool may .be raised as shownin Fig. 3, and the used plate or other portion of the form removed and anew portion substituted. then the raised spool returned to normalposition and thereafter the platen frame returned to its forward posi-.tion with the platen raised above the ribbon. The mechanism foreffecting such movement of the platen will be shortly described.

The platen comprises a roller 50 journaled I on a shaft 51 which haseccentric extensions 52 and 53 mounted in bearings 54 and 55 in atraveling platen carriage. This traveling carriagecomprises twostandards 60 and 61 as shown, connected by three cross rods 62, 63 and64. ()n the inner sides 'of the lower portions of the standards arerollers 66 and 67 which track in grooves 16 and 17 in opposite sides ofthe frame 10. The platen carriage described, accordingly may bereciprocated, carrying the platen roller over the form surmounted. bythe inking ribbon and back'to the position. The platen roller ispreferably provided near its ends with two smooth cylindrical portions57 which in such movement bear on horizontal bars 58 carried by theframe at opposite sides of the bed, while the intermediate cylindricalsurface 59 coacts with the form to effect the printing.

To insure accurate presentation of the platen, the bearing 54 for theplaten shaft is eccentrically mounted in the standard 60 and is providedwith a suitable extension 68 by which it may be turned, this extensionbeing locked by a screw- 69 occupying a slot in the extension andpassing into the standard as shown, in Fig. 3. This enables the platento be accurately leveled.

The platen is automatically rotated as the printing frame travels bymeans of the stationary rack 70 carried by the platen frame. A gear 71meshing with such rack and journalled on the portion 53 of the shaft isconnected by an Oldham coupling with the platen. This coupling enables acontinuous drive of the platen from the gear, although they turn aboutdifferent axes.

age system deseribed is that shown in Fig. 2

where the carriage is at the forward ends of itsstrolre and the plateniselevated. When the operator desires to draw the carriage toward him, hegrasps the handle 81 and pulls it. The first result of such action is toturn the rock shaft 80, thus lowering the platen to active position,after which the parts may travel toward him by a continued pull on thehandle into the position shown in Fig. 3. The rock arm 84 is providedwith a pairofwings 86 (Figs. 2 and 3) which carry adjustable set screws87 and 88 coacting with a stop pin 89 carried by the standard 60.

.Tliis adjustably limits the turning of the platen shaft in eitherdirection. I eThB platen carriage supports an inclinlng' paper table 90on which may be placed surmounted sheets of paper fanned out sothatthey'may be fed by the operators fingers one at a time, downwardlyand forwardly to the gripping mechanism carried by the platen. Suchgripping mechanism comprises a cross bar 92 on the platen and a rockshaft 93 carrying various fingers 94 9), such action'of the spring isprevented by a cam 100 on the shaft portion 52, which .cam at this timebears against a roller 101 on a rock arm 102 on the rock shaft 93carrying the grippingtfingers.

- The parts being in-the' position shown in Fig. 9, a sheet of paper maybe readily shoved downwardly and forwardly along l the table intoposition beneath the gripping cross bar92-and above the projectingfingers 9'4.- No'w, as the operator grasps the handle 81 and swings itrearwardly, the cam is thereby turned in an upward direction, into theposition shown in Fig. 10,

whereby it clearsthe roller 101,=thereupon the springs 95 are able torock theshaft 93, bringing the fingers 94 into coaction with the bar 92to grip the paper between them, as illustrated in Fig, 10.

-Duringthe continued movement of the platen'carria'ge toward theoperator, the

gearing causes the platen roller to rotate and roll over the form, andthus the gripped sheet of paper is wrappe d a round'the platen andprinted line after lineas the successive 'lines of the/form areimpressed. During such movemen t,'the roller 101 on the gripp'er rockarm travels around the concentric i portion 107 of'the cam 100. Justbefore the stroke is completed, this roller comes onto a portion of thecam having an increasing radius, as shown at 108 in Fig.11, which opensthe gripper, releasing the sheet.

The"release' ofthe sheetby the ggipper is' Calculatedto takeplace' justafter the rear end of the sheet has cleared the line of coactioii'Of'the'form and platen, so that the sheet is now completely released andmay be .removed by' the operator. In ordinary usage, the s'heetis not aslong as the available platen surface, and accordingly the release takesplace before the end of the stroke of the platen carriage,allowing'asomewhat further" rotation'to the platen roller after therelease, which operates to -carry the sheet toward the operator," oreven ftodischarge, it

' by momentum.-

into the position shown in Fig. 10. When It will be seen from the abovedescription that as the operator pushes the sheet between .the gripper'jaws, which he may read- .ily do with his left hand, and then pulls thecarriage toward himself with the other 7 hand on the handle 81, theeffect will be to the platen carriage,has traveled into positionadjacent the operator. This position is behind the pivots 44 of theforward rib- .7

bon frame; This frame mav then be readily raised bythe left hand of theoperator,

who with .his right hand may remove .the used idle plate and substitute-a fresh one therefor, after which the ribbon frame is 8 lowered and thecarriage returned tonormal position. I I" provide suitable mechanism forfeeding the ribbon-step'by step consequent upon the stroke of the platencarriage. As shown in Figs. 1 and 12, this mechanism comprises aratchetwheel 110 on the spool 42; a lever I 111 pivoted onthe bar 46 coaxiallywith the spool; a pawl 112 on thelever coacting with the ratchet, and aspring 113 acting on the lever. This lever 111 normally stands in aposition shown in broken lines in Fig. 12' where it is stopped byengaging a pm 115 carried by the arm 46. As the carriage is approachingthe limit of its movement toward the operator the carriage rod 62engages the lever 111 and cams it downwardly into the position shown infull lines in Fig. 12, thus carrying the pawl 112 back at least onetoothon the-ratchet; Then, on-the re- 1 turn stroke, after the rod 62clears the'cam lever 111, the spring 113 restores the lever andconsequent thereon the pawl 112 turns the ratchet 110, feeding theribbon.

'It is desirable thatv means he provide whereby the carriage stroke maybe stopped justafter the carriage has travelled a suffi cient distanceto printfrom the changeable 1 portion of the form, for instance, whenprinting envelopes from the address plate 30. To enable the platencarriage to make alternately a full stroke for the body of a circularletter and the address and a short stroke for, the address alone, 'Iprovide a stop mechanism, which will now Y be described.'

Mounted on each standard of the carriage on the side facing the operatorare a pair; of vertical sliding bolts connected by links with rockarmsj121 on a suitable rock shaft 122 mounted in the standards. Thesebolts are normally in the elevated position shown in Figs. 2 and 9, butmay be lowered lowered. they are in position to abut an adjustable crossbar 130 which forms a suitable abutment. This cross bar is slidablymounted on a-stationary fore-and-aft rod 131 and engages. the undersurfaces 18 of the stationary frame 10. This abutment bar may be lockedin any desired position by means of a thumb screw 135 screwinginto oneend of the bar and adapted to position a distance rod 136 against thestationary guide rod 131. i The abutment bar is normally located inposition where the bolts 120 if lowered will engage it just after theplaten has cleared the changeable portion of the form. V

To allow the bolts 120 to be manually depressed into active position andthereafter automatically raised into idle position, I provide mechanismshown in Figs. 1, 5, 9 and 10. On the rock shaft 122 is a rigid arm 140which is connected adjustably by a screw 141 with an arm 143 adjustableon the shaft 122. When adjusted, the arms 140 and 143, the shaft 122 andthe arms 121 are all rigidly connected and all operate as a unit. In theinner end of the arm 143 are a pair of notches 145 and 146, with eitherof which coacts a roller 147 carried by an arm 148 pivoted on thecarriage standard 61 and.

drawn at its free end toward the arm 143 by a spring 149. Mounted on theplaten shaft 51 is a tappet arm 150, which inthe normal standingposition of the parts (Fig.

9) engages the arm 140 and shoves it downwardly or maintains it inposition with the roller 147 in the upper notch 145, thus holding thebolts 120 in their upper or idle position.

Now, when the lever 81 is tipped toward the operator as the carriage isabout to be moved toward him, such movement carries the tappet150 awayfrom the lever 140 as shown in Fig. 10. This leaves the bolts 120suspended by the action of the roller 147 in the upper notch 145, butthe pressure of the operators fin er downwardly on the free end of one othe arms 121 is sufiicient to shove the bolts downwardly into activeposition, as shown in Fig. 10, and the roller 147 springing over intothe other notch 146. The bolts are now in position to engage projectingends of the stop bar and limit the movement of the carriage.

The limited movement of the carriage just described is effective, forinstance, for printing an envelope from the address plate 30. In thiscase, after the operator has fed the envelope along the table into thebite of the grippers, he grasps the handle and swings it toward himself;then pushes down on one 7 of the arms 121, lowering the bolts 120 thendraws the carriage toward himself until it is stopped, thus printing theenvelope from the addrecs plate. -Thereupon he reverses thehandle intothe position shown-in Fig. 6, which raises the stop bolts, and thendraws the carriage further toward himself without swinging the handle.The efiect of this is to maintain the platen above the printing form sothat there is no further printing on the envelope, but the enveloperemains be will raise the forward portion of gripped by the platen untilthe platen is in theposition shown in Fig. 11, where the enve ope isdischarged.

A similar operation is available for printing the addresses only onpreviously printe letters, even though a body form is mounted in themachine. In such case, the operator feeds the printed letter into thebite of the grippers, swings the handle toward himself, presses down onone of the arms121, and draws the carriage until the stop engages, thusprinting the address, then by reversing the handle and continuing themovement of the carriage with the handle in the position shown in Fig.6, the shaft is delivered without further printing.

It will be seen from the description given that my machine, among otheruses, is readily adapted for printing letters and envelopes. The bodyportion of the circular letter having been installed and the addressplate put in place, the operator will readily make a short strokethrowing down the stop pin at the beginning of the stroke and thus printthe envelope, then return the carriage, shove forward a sheet of paperto be gripped, and make a normal full stroke to print such sheetmith theaddress and body. At the end of the strolpp, t e ribbon frame, removethe address plate and put a new one in its place, depress the ribbonframe, and return the platen to idle position, thereupon the machine isready for printing another envelope and the associated letter. Theenvelope may be printed before, or after, the letter as desired.

My machine is comparatively simple and cheap in construction; it iseffective in use and after. reasonable experience of the op-' erator,may be operated with comparative rapldity, n producing circular lettersand their addressed envelopes. It should be un- I cooperating platen,two pivoted frames each adapted to carry a ribbon lbetween which .aribbon may extend 3:1 the form, and mechanism acting on one of thespools adapted to wind in the ribbon step by step.

2. The combination of a base frame having an elevated flat-bed adaptedto supporta printing form, two pairs of arms pivoted at their adjacentends to opposite sides of the raised bed in the intermediate region tworibbon spools carri respectively between the two arms of a pair atopposite ends of the bed, aninking ribbon carried by said spools andoverlyingthe bed, and a thereof and extending inpiposite directions,

-tion of the form, means carrying an inking" ribbon overlying bothportions of the form,

and a reciprocating carriage having a platen adapted to coact with theribbon and form. 4. In a printing machine, the combination of ahorizontal base frame having a raised bed adapted to support acomparatively per- 'manent part of the form and a {readily changeablepart of the form, an inking ribbon overlying both portions of. the form,and a reciprocating carriage having a' platen adapted to coact with theribbon and form, a pair of movable frames pivoted at the sides of thebed and carrying spools on which the ends of said ribbon'are mounted,whereby either of such spools may be raised to uncover'the eitherportion of the form, and mechanism coacting with one of the spools andoperated by the stroke of the carriage for periodically winding in theribbon..

5. In a printing machine,'the combination of a horizontal frame having abed adapted to support a printing surface, a carriage reciprocable onthe frame and comprising a pair of standards and cross bars therefor,said standards having rollers engaging guides at opposite sides of theframe, a rock shaft carried by the standards, a handle on the rock shaftserving the double purpose of turning it and of reciprocating thecarriage, aplaten between the standards, an eccentric shaft on which theplaten is mounted, an o crating connection between the platen shaft andsaid rock shaft.

6. In a printing machine, the combination of aprinting bed, areciprocating carriage having a handle, a roller platen mounted in thecarriage, a paper gripper mounted in the platen, and means under thecontrol of the handle for operating the gripper to grip the forward edgeof a sheet and wrap it around the platen as the platen travels. v

7 In a printing machine, the combination of a flat bed, a reciprocatingcarriage, a roller platen therein, a pivoted gripper mounted in theplaten, an operating handle for the carriage, mechanism whereby movementof said handle relative to the carriage may operate to close thegripper.

8. In a printing machine, the combination of a flat bed, a reciprocatingcarriage, a roller platen therein, a cam mounted in the .tion of acarriage, means for moving said cam to close the gripper, the camthereafter remaining stationary during the travel of the carriage,-and-means whereby the stationary cam operates to open the gripper at asubsequent portion of the rotation of the platen- 9. The combinationofiitype bed, a traveling carriage, a roller platen. within the carriage,grippers mounted on the platen and adapted to be open to receive thepaper,

said grippers having movable members mounted on a rock shaft, an arm onsaid rock shaft, a cam controlling said, arm, mechanism for moving saidcam to act on the arm to close the grippers, said cam having aconcentric portion about which the gripper arm travels with the grippersclosed and having a portion of increasing radius adapted to open thegrippers.

10. The combination of a fiat bed adapted to carry a printing form, areciprocating carriage mounted thereon, a roller platen eccentricallymounted in the carriage, paper grippers mounted in the platen, saidgrippers being mounted on a rock shaft which carries an arm having aroller, a cam with which the roller coacts, a lever connected with theeccentric and adapted to lower the platen and also connected withthe camand adapted to move it to act on the gripper arm roller -to close thegripper, said cam having a concentric portion about which the rollertravels during travel of the platen, and having a portion which operateson the roller during said travel to open the grippers.

11. In a printing machine, the combinarinting ed, a reciprocatingcarriage, a p aten mounted in the carriage, a paper gripper mounted inthe platen,- a paper table carried by the carriage and travelingtherewith and adapted to support sheets which may be fed into the gripof the gripper, and means for operating the gripper to grip the forwardedge of a sheet.

12. In a printing machine, the combination of a flat bed, a reciprocatimcarriage, a roller platen therein, pivoted grippers mounted in theplaten, a paper table on the carriage along which paper may be fed tothe bite of the grippers, an operating handle for the carriage,mechanism whereby movement of said handle relative to the carriage mayoperate to close the grippers.

13. In a printing machine, the combination of a fiat bed, areciprocating carriage, a roller platen therein, a pivoted grippermounted in the platen, a paper table on the carriage along which papermay be fed to the bite of the gripper, an operating handle for thecarriage, mechanism whereby movement of said handle relative to thecarriage 'may operate to close the gripper, a cam mounted in thecarriage, means for moving sald cam to close the gripper, the camthereafter remaining stationary during the travel of the carriage, andmeans whereby the stationary cam operates to open the gripper; a

14. In a printing machine, the combination of a bed, a two part formthereon, a platen adapted to coact by a continuous movement with bothparts of the form andboth portions of the form, and a settable stop tolimit the travel of the platen to the changeable portion of the form.

16. In a printing machine, the combination of a bed, a relativelypermanent print ing form thereon, a relatively changeable printing formpositionable thereon, a platen adapted .to coact with both portions ofthe form, a settable stop to limit the engagement of the platen to thechangeable portion of the form, said stop being manually settable, andmeans for releasing thesame.

17. The combination of a bed adapted to support a form for printing thebody of a letter and a changeable form for printing the address, areciprocatory carriage, a

,roller platen therein adapted to coact with the two portions of theform in succession,

' a bolt adapted to stop the reciprocation of the platen afterthechangeable portion has beeniacted on and before action on thepermanent portion, said bolt bein manually positionable and mechanism towithdraw the bolt from active position.

18. The combination of a horizontal frame adapted to support a flatprinting form, a reciprocable type carriage, a movable bolt carriedthereby, an abutment adjustable on the frame adapted to be engaged bysaid bolt in one position and cleared by it in another, means fortentatively holding the bolt in either its active or inactive position,means for reciprocating the carriage, and mechanism operated by thereciprocatingmeans for restoring the bolt to inactive position.

19. In a. printing machine, the co'mbina .tion of a' fiat bed, arelatively permanent printing form thereon, a relatively changeableprinting form positionablethereon, a traveling roller platen adapted tocoact with both portions of the form, a settable stop to limit thetravel of the platen to the changeable portion of the form, said stopbeing manually settable, and meansfor releasing the same.

20. The combination of a horizontal base havin a printing bed, areciprocatory carriage aving a roller platen adapted'to coact with saidbed, a transverse slide beneath the bed, a pairof bolts carried by thecarriage normally elevated to travel above the slide, said bolts beingmounted-on rock arms and adapted to be lowered into position to engagethe slide, a handle for reciprocating the slide, and mechanism operableby said handle when moved in the directionvto return.

the carriage after printing to rock said arms to raise the bolts to idleposition.

21. The combination of a stationary frame havinga raised flat printingbed, a horizontal guide beneath the bed, a transversev'ir.

slide on said guide projecting beyond the bed, means for locking theslide in various positions, a reciprocatory platen carriage and a pairof bolts carried thereby on opposite sides of the bed and adapted to belowered into position to engage the projecting ends of the slide or.raised to clear such ends,

- 22. The combination of a bed adapted to support a permanent part andthe changeable part of a printing form, a carriage reciprocable alongsaid bed, a roller platen mounted in said carriage, an eccentricmounting for the platen, a handle for the carriage controlling theeccentric mounting, a stop for limiting the movement of the carriageafter the platen has coacted with the changeable portion of the formonly, and an operating connection between the stop and the handle. v

. 23. The combination of a bed adapted to support permanent andchangeable portions of a form, a reciprocating carriage, aroller platentherein, a handle for operating the carriage, grippers on the platenadapted to be controlled by said handle, and a stop for limiting thestroke of the carriage to the changeable portion of the 'form, said stopbed, means for supporting thereon a ermanent portion of a. form and alsoa c angeable portion, a reciprocatory carriage, a roller platen thereinadapted to coact with both portions of the form, paper grippers on theplaten, an eccentric mounting for the platen, a settable stop forlimiting the move ment of the carriage to the changeable portion'of'theform only, and a device on the carriage serving the triple purpose ofmoving the platen into active position, closing the grippers, andthereafter releasing the stop. a

25., In a printing machine, the combination of a printing bed, areciprocable platen carriage, a roller platen eccentrically mounted inthe carriage, a handle for recip-- rocatipg the carriage, a stationaryrack along the bed, a gear meshing with said rac said gear and platenrotating about diiierent axes, and a coupling connecting the gear andplaten, and means whereby'the handle may ends of the bed carrying aribbon overlying such form, a reciprocab e for said platen, a leverpivoted to the carriage and serving as a handle for reciprocating thecarriage, a stationary rack along the bed, a gear meshing with saidrack, said gear and platen rotating about different axes, a couplingconnecting the gear and platen, and means whereby the handle may turnthe eccentric.

27. The combination of a flat type bed, a reciprocating carriage, aroller platen within the carriage, a paper table carried b the platencarriage, a. roller platen therein, an eccentric mounting carriage,grippers mounted on the platen and adapted to be held open to receivepaper fed along the table, a stationary-rack along the bed, a gearmeshing with said rack, said gear and platen rotating about diiferentaxes, a coupling connecting the gear and platen. an operating handle forthe carriage, and mechanism actuated thereby for closing the grippersand for moving the platen to active position.

In testimony whereof, I hereunto afiix my signature.

LAWRENCE H. MORSE.

